Problems from The 2020 ICPC Vietnam National Contest

Name
Fastest
Shortest
Authors
Full Solves
Ratio
Difficulty
Languages
Astrological Sign0.002781382118786%2.5Easyen
Battle of Hogwarts0.0673325720178%5.3Mediumen
Cable Car0.00282985354%7.9Harden
Dividing Kingdom0.3416241027473%5.8Harden
Easy Arithmetic0.061656965355%7.7Harden
Fluffy Cat0.011432382258%7.8Harden
Greatest Pair0.4714341198370%5.9Harden
Highway to Mount Fansipan0.0334728522880%4.0Mediumen
Infinite 2D Array0.0445620214873%5.5Harden
Just Enough Water0.0042715913585%4.4Mediumen
Kingdom of Cats0.0027723418077%5.1Mediumen
Looping Around0.471858714158%7.7Harden
Malfunctioning Robot0.007446535075%3.8Mediumen